title: Usefulness of cone-beam computed tomography during balloon-occluded retrograde transvenous obliteration.
abstract: OBJECTIVE
  The purpose of our investigation was to evaluate the usefulness of cone-beam computed tomography (CBCT) in balloon-occluded retrograde transvenous obliteration (B-RTO) for gastric varices.
  
  
  METHODS
  Between December 2010 and March 2011, four patients underwent B-RTO for gastric varices that occurred after portal hypertension. In all, after insertion of sclerotic agents, CBCT was used to observe distribution of the sclerotic agent in the gastric varices and afferent gastric veins. Investigated was whether the entire gastric varices and afferent gastric veins were confirmed by retrograde venography performed when the sclerotic agent was infused and by CBCT obtained after insertion of the sclerotic agent.
  
  
  RESULTS
  On CBCT obtained after insertion of the sclerotic agent, distribution of sclerotic agents in the gastric varices and afferent gastric veins was clearly visualized. On the other hand, retrograde venography was inferior in detecting the area of distribution of sclerotic agents and the afferent gastric veins.
  
  
  CONCLUSIONS
  Application of CBCT is helpful to precisely evaluate the distribution of sclerotic agents in B-RTO.
authors.affiliation: Department of Radiology.
authors.forename: Takuji
authors.initials: T
authors.lastname: Yamagami
authors.forename: Rika
authors.initials: R
authors.lastname: Yoshimatsu
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Miura
authors.forename: Osamu
authors.initials: O
authors.lastname: Tanaka
authors.forename: Kohichiroh
authors.initials: K
authors.lastname: Yasui
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Yagi
authors.forename: Kei
authors.initials: K
authors.lastname: Yamada
mesh_terms: D000368:Aged; D021721:Balloon Occlusion / Q000379:methods*; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D004932:Esophageal and Gastric Varices / Q000209:etiology / Q000628:therapy*; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012597:Sclerosing Solutions / Q000008:administration & dosage; D015911:Sclerotherapy / Q000379:methods; D016896:Treatment Outcome
chemical_list: D012597:Sclerosing Solutions